A local version of OMS services Management
Repositories on each local database. The OMS is a J2EE Web application that
also renders the Grid Control console user interface at the central location.
Oracle Management Repository
Enterprise Manager accesses this repository of health, status, and performance
data. A repository is automatically installed on each local database to service
each local Enterprise Manager Database Control console. Oracle Grid Control
accesses a central Oracle Management Repository serviced by a central OMS and
central Oracle Management Agent.
The EM architecture is shown in Figure 5-2.
Management Agents are available for the wide variety of operating systems on which
the Oracle database is available and are responsible for automatic service discovery,
event monitoring, and job (predefined task) execution. Management Agents can also
send Simple Network Management Protocol (SNMP) traps to database performance
monitors in other system monitoring tools.
Figure 5-1. Typical Grid Control home page
Oracle Enterprise Manager | 129
Oracle Enterprise Manager Consoles
EM??™s popularity grew as deployment of the Oracle database expanded within companies
to multiple operating systems and as additional Oracle software components
were added to the mix.
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